weseek__growi/packages/core/scss/_flex-expand.scss

.flex-expand-horiz {
  display: flex;
  flex-direction: row;
  flex-grow: 1;
  height: 100%;
}

.flex-expand-vert {
  display: flex;
  flex: 1;
  flex-direction: column;
  height: 100%;
}

.flex-expand-vh-100 {
  height: 100vh;

  .flex-expand-horiz,
  .flex-expand-vert {
    overflow-y: auto;
  }
}